Fixing stray NPEs

Fixes: 151539645
- no session activity

Fixes: 151054103
- no contentIntent

Fixes: 151566982
- no handler for mSeamless

Test: manual, existing tests pass
Change-Id: I543ac440d8185eeaaab7c8d937db30b10b56bc00
diff --git a/packages/SystemUI/src/com/android/systemui/media/MediaControlPanel.java b/packages/SystemUI/src/com/android/systemui/media/MediaControlPanel.java
index a161d03..e208ee2 100644
--- a/packages/SystemUI/src/com/android/systemui/media/MediaControlPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/media/MediaControlPanel.java
@@ -33,7 +33,6 @@
 import android.media.session.MediaController;
 import android.media.session.MediaSession;
 import android.media.session.PlaybackState;
-import android.os.Handler;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -64,6 +63,7 @@
 public class MediaControlPanel implements NotificationMediaManager.MediaListener {
     private static final String TAG = "MediaControlPanel";
     private final NotificationMediaManager mMediaManager;
+    private final Executor mForegroundExecutor;
     private final Executor mBackgroundExecutor;
 
     private Context mContext;
@@ -102,15 +102,18 @@
      * @param manager
      * @param layoutId layout resource to use for this control panel
      * @param actionIds resource IDs for action buttons in the layout
+     * @param foregroundExecutor foreground executor
      * @param backgroundExecutor background executor, used for processing artwork
      */
     public MediaControlPanel(Context context, ViewGroup parent, NotificationMediaManager manager,
-            @LayoutRes int layoutId, int[] actionIds, Executor backgroundExecutor) {
+            @LayoutRes int layoutId, int[] actionIds, Executor foregroundExecutor,
+            Executor backgroundExecutor) {
         mContext = context;
         LayoutInflater inflater = LayoutInflater.from(mContext);
         mMediaNotifView = (LinearLayout) inflater.inflate(layoutId, parent, false);
         mMediaManager = manager;
         mActionIds = actionIds;
+        mForegroundExecutor = foregroundExecutor;
         mBackgroundExecutor = backgroundExecutor;
     }
 
@@ -176,15 +179,17 @@
         mMediaNotifView.setBackgroundTintList(ColorStateList.valueOf(mBackgroundColor));
 
         // Click action
-        mMediaNotifView.setOnClickListener(v -> {
-            try {
-                contentIntent.send();
-                // Also close shade
-                mContext.sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
-            } catch (PendingIntent.CanceledException e) {
-                Log.e(TAG, "Pending intent was canceled", e);
-            }
-        });
+        if (contentIntent != null) {
+            mMediaNotifView.setOnClickListener(v -> {
+                try {
+                    contentIntent.send();
+                    // Also close shade
+                    mContext.sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
+                } catch (PendingIntent.CanceledException e) {
+                    Log.e(TAG, "Pending intent was canceled", e);
+                }
+            });
+        }
 
         // App icon
         ImageView appIcon = mMediaNotifView.findViewById(R.id.icon);
@@ -316,7 +321,7 @@
 
         // Now that it's resized, update the UI
         final RoundedBitmapDrawable result = roundedDrawable;
-        albumView.getHandler().post(() -> {
+        mForegroundExecutor.execute(() -> {
             if (result != null) {
                 albumView.setImageDrawable(result);
                 albumView.setVisibility(View.VISIBLE);
@@ -335,8 +340,7 @@
         if (mSeamless == null) {
             return;
         }
-        Handler handler = mSeamless.getHandler();
-        handler.post(() -> {
+        mForegroundExecutor.execute(() -> {
             updateChipInternal(device);
         });
     }
@@ -401,12 +405,15 @@
                         new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
                 mContext.sendBroadcast(intent);
             } else {
-                Log.d(TAG, "No receiver to restart");
                 // If we don't have a receiver, try relaunching the activity instead
-                try {
-                    mController.getSessionActivity().send();
-                } catch (PendingIntent.CanceledException e) {
-                    Log.e(TAG, "Pending intent was canceled", e);
+                if (mController.getSessionActivity() != null) {
+                    try {
+                        mController.getSessionActivity().send();
+                    } catch (PendingIntent.CanceledException e) {
+                        Log.e(TAG, "Pending intent was canceled", e);
+                    }
+                } else {
+                    Log.e(TAG, "No receiver or activity to restart");
                 }
             }
         });
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSMediaPlayer.java b/packages/SystemUI/src/com/android/systemui/qs/QSMediaPlayer.java
index 837256b..d5e5b10 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSMediaPlayer.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSMediaPlayer.java
@@ -55,11 +55,13 @@
      * @param context
      * @param parent
      * @param manager
+     * @param foregroundExecutor
      * @param backgroundExecutor
      */
     public QSMediaPlayer(Context context, ViewGroup parent, NotificationMediaManager manager,
-            Executor backgroundExecutor) {
-        super(context, parent, manager, R.layout.qs_media_panel, QS_ACTION_IDS, backgroundExecutor);
+            Executor foregroundExecutor, Executor backgroundExecutor) {
+        super(context, parent, manager, R.layout.qs_media_panel, QS_ACTION_IDS, foregroundExecutor,
+                backgroundExecutor);
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
index bf72b33..5ccf8c7 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
@@ -53,6 +53,7 @@
 import com.android.systemui.R;
 import com.android.systemui.broadcast.BroadcastDispatcher;
 import com.android.systemui.dagger.qualifiers.Background;
+import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dump.DumpManager;
 import com.android.systemui.plugins.qs.DetailAdapter;
 import com.android.systemui.plugins.qs.QSTile;
@@ -101,6 +102,7 @@
     private final ArrayList<QSMediaPlayer> mMediaPlayers = new ArrayList<>();
     private final NotificationMediaManager mNotificationMediaManager;
     private final LocalBluetoothManager mLocalBluetoothManager;
+    private final Executor mForegroundExecutor;
     private final Executor mBackgroundExecutor;
     private LocalMediaManager mLocalMediaManager;
     private MediaDevice mDevice;
@@ -160,6 +162,7 @@
             BroadcastDispatcher broadcastDispatcher,
             QSLogger qsLogger,
             NotificationMediaManager notificationMediaManager,
+            @Main Executor foregroundExecutor,
             @Background Executor backgroundExecutor,
             @Nullable LocalBluetoothManager localBluetoothManager
     ) {
@@ -168,6 +171,7 @@
         mQSLogger = qsLogger;
         mDumpManager = dumpManager;
         mNotificationMediaManager = notificationMediaManager;
+        mForegroundExecutor = foregroundExecutor;
         mBackgroundExecutor = backgroundExecutor;
         mLocalBluetoothManager = localBluetoothManager;
 
@@ -270,7 +274,7 @@
         if (player == null) {
             Log.d(TAG, "creating new player");
             player = new QSMediaPlayer(mContext, this, mNotificationMediaManager,
-                    mBackgroundExecutor);
+                    mForegroundExecutor, mBackgroundExecutor);
 
             if (player.isPlaying()) {
                 mMediaCarousel.addView(player.getView(), 0, lp); // add in front
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickQSMediaPlayer.java b/packages/SystemUI/src/com/android/systemui/qs/QuickQSMediaPlayer.java
index 4512afb..0c50194 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickQSMediaPlayer.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickQSMediaPlayer.java
@@ -48,12 +48,13 @@
      * @param context
      * @param parent
      * @param manager
+     * @param foregroundExecutor
      * @param backgroundExecutor
      */
     public QuickQSMediaPlayer(Context context, ViewGroup parent, NotificationMediaManager manager,
-            Executor backgroundExecutor) {
+            Executor foregroundExecutor, Executor backgroundExecutor) {
         super(context, parent, manager, R.layout.qqs_media_panel, QQS_ACTION_IDS,
-                backgroundExecutor);
+                foregroundExecutor, backgroundExecutor);
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
index 6654b7a..be01d75 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
@@ -32,6 +32,7 @@
 import com.android.systemui.R;
 import com.android.systemui.broadcast.BroadcastDispatcher;
 import com.android.systemui.dagger.qualifiers.Background;
+import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dump.DumpManager;
 import com.android.systemui.plugins.qs.QSTile;
 import com.android.systemui.plugins.qs.QSTile.SignalState;
@@ -79,11 +80,12 @@
             BroadcastDispatcher broadcastDispatcher,
             QSLogger qsLogger,
             NotificationMediaManager notificationMediaManager,
+            @Main Executor foregroundExecutor,
             @Background Executor backgroundExecutor,
             @Nullable LocalBluetoothManager localBluetoothManager
     ) {
         super(context, attrs, dumpManager, broadcastDispatcher, qsLogger, notificationMediaManager,
-                backgroundExecutor, localBluetoothManager);
+                foregroundExecutor, backgroundExecutor, localBluetoothManager);
         if (mFooter != null) {
             removeView(mFooter.getView());
         }
@@ -103,7 +105,7 @@
 
             int marginSize = (int) mContext.getResources().getDimension(R.dimen.qqs_media_spacing);
             mMediaPlayer = new QuickQSMediaPlayer(mContext, mHorizontalLinearLayout,
-                    notificationMediaManager, backgroundExecutor);
+                    notificationMediaManager, foregroundExecutor, backgroundExecutor);
             LayoutParams lp2 = new LayoutParams(0, LayoutParams.MATCH_PARENT, 1);
             lp2.setMarginEnd(marginSize);
             lp2.setMarginStart(0);